Select one of these codecs if you intend to monitor or output to one of these formats. Using the Proxy option is the way to go when you are in such a situation. Common in video from digital cameras, and a reasonable format for By far the most common proxy codecs are DNxHD/DNxHR and ProRes. Just learn more about the detailed process as below.
If the MP4 files are encoded with other codec, Premiere Pro CC will not recognize that codec. It is the standard for most web video hosting and Blu-ray.
An update pack is available that contains newer versions of MPC-HC, LAV Filters, and MPC Video Renderer. Use a codec like Apple ProRes LT for easier editing in Premiere Pro. After the proxies are processed, click on Metadata Display, found in your project panel.
For example, if your 5-minute chunk was 8M in size, then the 100-minute movie will be about 20 times that, or 160M. It’s the codec used for DVDs and for HDTV broadcast or cable.